SE7411340L - - Google Patents
Info
- Publication number
- SE7411340L SE7411340L SE7411340A SE7411340A SE7411340L SE 7411340 L SE7411340 L SE 7411340L SE 7411340 A SE7411340 A SE 7411340A SE 7411340 A SE7411340 A SE 7411340A SE 7411340 L SE7411340 L SE 7411340L
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/677—Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP873574A JPS50104805A (zh) | 1974-01-19 | 1974-01-19 | |
JP873474A JPS50104804A (zh) | 1974-01-19 | 1974-01-19 | |
JP1964674A JPS50114906A (zh) | 1974-02-19 | 1974-02-19 | |
JP1964574A JPS50114905A (zh) | 1974-02-19 | 1974-02-19 | |
JP5043474A JPS50142107A (zh) | 1974-05-07 | 1974-05-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7411340L true SE7411340L (zh) | 1975-07-21 |
Family
ID=27518978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7411340A SE7411340L (zh) | 1974-01-19 | 1974-09-09 |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU7316674A (zh) |
DE (1) | DE2451069A1 (zh) |
FR (1) | FR2258753A1 (zh) |
IT (1) | IT1024773B (zh) |
SE (1) | SE7411340L (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BG37515A1 (en) * | 1983-02-02 | 1985-06-14 | Popov | Device for limiting telephone dial selection |
BG37516A1 (en) * | 1983-03-14 | 1985-06-14 | Popov | Device for limiting telephone dial selection |
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1974
- 1974-09-09 SE SE7411340A patent/SE7411340L/ not_active Application Discontinuation
- 1974-09-10 AU AU73166/74A patent/AU7316674A/en not_active Expired
- 1974-10-24 FR FR7435749A patent/FR2258753A1/fr not_active Withdrawn
- 1974-10-26 DE DE19742451069 patent/DE2451069A1/de active Pending
- 1974-11-07 IT IT7027074A patent/IT1024773B/it active
Also Published As
Publication number | Publication date |
---|---|
AU7316674A (en) | 1976-03-18 |
DE2451069A1 (de) | 1975-07-24 |
FR2258753A1 (en) | 1975-08-18 |
IT1024773B (it) | 1978-07-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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